net/freenet/fred/files/run.sh
#! /bin/sh

#
# Copyright (c) 1999, 2006 Tanuki Software Inc.
#
# Java Service Wrapper sh script.  Suitable for starting and stopping
#  wrapped Java applications on UNIX platforms.
#

#-----------------------------------------------------------------------------
# These settings can be modified to fit the needs of your application

# Application
APP_NAME="freenet"
APP_LONG_NAME="Freenet 0.7.5"

# Wrapper
WRAPPER_CMD="/usr/local/sbin/tanukiwrapper"
WRAPPER_CONF="/usr/local/share/freenet/wrapper.config"

# Priority at which to run the wrapper.  See "man nice" for valid priorities.
#  nice is only used if a priority is specified.

# Note that Freenet will scale its usage within the specifed niceness, some
# threads will have a lower priority (higher nice value) than this. Also please
# don't renice Freenet once it's started.
PRIORITY=10

# Location of the pid file.
PIDDIR="/var/freenet/"

# If uncommented, causes the Wrapper to be shutdown using an anchor file.
#  When launched with the 'start' command, it will also ignore all INT and
#  TERM signals.
IGNORE_SIGNALS=true

# If specified, the Wrapper will be run as the specified user.
# IMPORTANT - Make sure that the user has the required privileges to write
#  the PID file and wrapper.log files.  Failure to be able to write the log
#  file will cause the Wrapper to exit without any way to write out an error
#  message.
# NOTE - This will set the user which is used to run the Wrapper as well as
#  the JVM and is not useful in situations where a privileged resource or
#  port needs to be allocated prior to the user being changed.
#RUN_AS_USER=freenet

# The following two lines are used by the chkconfig command. Change as is
#  appropriate for your application.  They should remain commented.
# chkconfig: 2345 20 80
# description: @app.long.name@

# Do not modify anything beyond this point
#-----------------------------------------------------------------------------

if [ "X`id -u`" = "X0" -a -z "$RUN_AS_USER" ]
then
    echo "Do not run this script as root."
    exit 1
fi

# and get java implementation too, Sun JDK or Kaffe
JAVA_IMPL=`java -version 2>&1 | head -n 1 | cut -f1 -d' '`

# sun specific options
LDPROP=""
#if [ "$JAVA_IMPL" = "java" ]
#then 
#	echo Sun java detected.
#	# Tell it not to use NPTL.
#	# BAD THINGS happen if it uses NPTL.
#	# Specifically, at least on 1.4.1. and 1.5.0b2, we get hangs
#	# where many threads are stuck waiting for a lock to be 
#	# unlocked but no thread owns it.
#
#	## won't work on libc2.4 ... let's hope it's fixed
#	if [[ -z "$(/lib/libc.so.6 | head -n 1 | grep 'release version 2.4')" ]]
#	then
#		if [[ -d /lib/tls ]]
#		then
#			LDPROP="set.LD_ASSUME_KERNEL=2.4.1" 
#		fi
#	fi
#fi 


# Get the fully qualified path to the script
case $0 in
    /*)
        SCRIPT="$0"
        ;;
    *)
        PWD=`pwd`
        SCRIPT="$PWD/$0"
        ;;
esac

# Resolve the true real path without any sym links.
CHANGED=true
while [ "X$CHANGED" != "X" ]
do
    # Change spaces to ":" so the tokens can be parsed.
    SCRIPT=`echo $SCRIPT | sed -e 's; ;:;g'`
    # Get the real path to this script, resolving any symbolic links
    TOKENS=`echo $SCRIPT | sed -e 's;/; ;g'`
    REALPATH=
    for C in $TOKENS; do
        REALPATH="$REALPATH/$C"
        while [ -h "$REALPATH" ] ; do
            LS="`ls -ld "$REALPATH"`"
            LINK="`expr "$LS" : '.*-> \(.*\)$'`"
            if expr "$LINK" : '/.*' > /dev/null; then
                REALPATH="$LINK"
            else
                REALPATH="`dirname "$REALPATH"`""/$LINK"
            fi
        done
    done

    # Change ":" chars back to spaces.
    REALPATH="`echo $REALPATH | sed -e 's;:; ;g'`"
    SCRIPT="`echo $SCRIPT | sed -e 's;:; ;g'`"

    if [ "$REALPATH" = "$SCRIPT" ]
    then
        CHANGED=""
    else
        SCRIPT="$REALPATH"
    fi
done

# Change the current directory to the location of the script
cd "`dirname \"$REALPATH\"`"
REALDIR="`pwd`"
# If the PIDDIR is relative, set its value relative to the full REALPATH to avoid problems if
#  the working directory is later changed.
FIRST_CHAR="`echo $PIDDIR | cut -c1,1`"
if [ "$FIRST_CHAR" != "/" ]
then
    PIDDIR="$REALDIR/$PIDDIR"
fi
# Same test for WRAPPER_CMD
FIRST_CHAR="`echo $WRAPPER_CMD | cut -c1,1`"
if [ "$FIRST_CHAR" != "/" ]
then
    WRAPPER_CMD="$REALDIR/$WRAPPER_CMD"
fi
# Same test for WRAPPER_CONF
FIRST_CHAR="`echo $WRAPPER_CONF | cut -c1,1`"
if [ "$FIRST_CHAR" != "/" ]
then
    WRAPPER_CONF="$REALDIR/$WRAPPER_CONF"
fi

# Process ID
ANCHORFILE="$PIDDIR/$APP_NAME.anchor"
PIDFILE="$PIDDIR/$APP_NAME.pid"
LOCKDIR="$REALDIR"
LOCKFILE="$LOCKDIR/$APP_NAME"
pid=""

# Resolve the os
DIST_OS=`uname -s | tr [:upper:] [:lower:] | tr -d [:blank:]`
case "$DIST_OS" in
    'sunos')
        DIST_OS="solaris"
        ;;
    'hp-ux' | 'hp-ux64')
        DIST_OS="hpux"
        ;;
    'darwin' | 'oarwin')
        DIST_OS="macosx"
	
	#We use the 1.5 jvm if it exists
	if [ -d /System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/ ]
	then
		export JAVA_HOME="/System/Library/Frameworks/JavaVM.framework/Versions/1.5.0/Home"
	fi
        ;;
    'unix_sv')
        DIST_OS="unixware"
        ;;
esac

# Resolve the architecture
DIST_ARCH=`uname -m | tr [:upper:] [:lower:] | tr -d [:blank:]`
case "$DIST_ARCH" in
    'amd64' | 'ia32' | 'ia64' | 'i386' | 'i486' | 'i586' | 'i686' | 'x86_64')
        DIST_ARCH="x86"
        ;;
    'ip27' | 'mips')
        DIST_ARCH="mips"
        ;;
    'power' | 'powerpc' | 'power_pc' | 'ppc64')
        DIST_ARCH="ppc"
        ;;
    'pa_risc' | 'pa-risc')
        DIST_ARCH="parisc"
        ;;
    'sun4u' | 'sparcv9')
        DIST_ARCH="sparc"
        ;;
    '9000/800')
        DIST_ARCH="parisc"
        ;;
esac

# Check if we are running on 64bit platform, seems like a workaround for now...
DIST_BIT=`uname -m | tr [:upper:] [:lower:] | tr -d [:blank:]`
case "$DIST_BIT" in
    'amd64' | 'ia64' | 'x86_64' | 'ppc64')
        DIST_BIT="64"
        ;;
#    'pa_risc' | 'pa-risc') # Are some of these 64bit? Least not all...
#       BIT="64"
#        ;;
    'sun4u' | 'sparcv9') # Are all sparcs 64?
        DIST_BIT="64"
        ;;
#    '9000/800')
#       DIST_BIT="64"
#        ;;
    *) # In any other case default to 32
        DIST_BIT="32"
        ;;
esac

# Decide on the wrapper binary to use.
# 64bit wrapper by default on 64bit platforms, because
# they might not have 32bit emulation libs installed. 
# For macosx, we also want to look for universal binaries.

WRAPPER_TEST_CMD="$WRAPPER_CMD-$DIST_OS-$DIST_ARCH-$DIST_BIT"

if [ -x "$WRAPPER_TEST_CMD" ]
then
    WRAPPER_CMD="$WRAPPER_TEST_CMD"
else
    if [ "$DIST_OS" = "macosx" ] # Some osx weirdness, someone please check that this still works
    then
        WRAPPER_TEST_CMD="$WRAPPER_CMD-$DIST_OS-universal-$DIST_BIT"
        if [ -x "$WRAPPER_TEST_CMD" ]
        then
            WRAPPER_CMD="$WRAPPER_TEST_CMD"
        else
            WRAPPER_TEST_CMD="$WRAPPER_CMD-$DIST_OS-$DIST_ARCH-$DIST_BIT"
            if [ -x "$WRAPPER_TEST_CMD" ]
            then
                WRAPPER_CMD="$WRAPPER_TEST_CMD"
            else
                WRAPPER_TEST_CMD="$WRAPPER_CMD-$DIST_OS-universal-$DIST_BIT"
                if [ -x "$WRAPPER_TEST_CMD" ]
                then
                    WRAPPER_CMD="$WRAPPER_TEST_CMD"
                else
                    if [ ! -x "$WRAPPER_CMD" ]
                    then
                        echo "Unable to locate any of the following binaries:"
                        echo "  $WRAPPER_CMD-$DIST_OS-$DIST_ARCH-$DIST_BIT"
                        echo "  $WRAPPER_CMD-$DIST_OS-universal-$DIST_BIT"
                        echo "  $WRAPPER_CMD"
			#
			# We need -Djava.net.preferIPv4Stack=true on FreeBSD, otherwise recent jvms thow an IllegalArgumentException when we create the socket
			#
                        NO_WRAPPER="java -Djava.net.preferIPv4Stack=true -cp freenet-ext.jar:freenet.jar freenet.node.NodeStarter"
                    fi
                fi
            fi
        fi
    else
        if [ ! -x "$WRAPPER_CMD" ]
        then
            echo "Unable to locate any of the following binaries:"
            echo "  $WRAPPER_CMD-$DIST_OS-$DIST_ARCH-$DIST_BIT"
            echo "  $WRAPPER_CMD"
            NO_WRAPPER="java -cp freenet-ext.jar:freenet.jar freenet.node.NodeStarter"
        fi
    fi
fi

# Build the nice clause
if [ "X$PRIORITY" = "X" ]
then
    CMDNICE=""
else
    CMDNICE="nice -$PRIORITY"
fi

# Build the anchor file clause.
if [ "X$IGNORE_SIGNALS" = "X" ]
then
   ANCHORPROP=
   IGNOREPROP=
else
   ANCHORPROP=wrapper.anchorfile=\"$ANCHORFILE\"
   IGNOREPROP=wrapper.ignore_signals=TRUE
fi

# Build the lock file clause.  Only create a lock file if the lock directory exists on this platform.
if [ -d "$LOCKDIR" ]
then
    LOCKPROP=wrapper.lockfile=\"$LOCKFILE\"
else
    LOCKPROP=
fi

checkUser() {
    # Check the configured user.  If necessary rerun this script as the desired user.
    if [ "X$RUN_AS_USER" != "X" ]
    then
        # Resolve the location of the 'id' command
        IDEXE="/usr/xpg4/bin/id"
        if [ ! -x $IDEXE ]
        then
            IDEXE="/usr/bin/id"
            if [ ! -x $IDEXE ]
            then
                echo "Unable to locate 'id'."
                echo "Please report this message along with the location of the command on your system."
                exit 1
            fi
        fi
    
        if [ "`$IDEXE -u -n`" = "$RUN_AS_USER" ]
        then
            # Already running as the configured user.  Avoid password prompts by not calling su.
            RUN_AS_USER=""
        fi
    fi
    if [ "X$RUN_AS_USER" != "X" ]
    then
        # If LOCKPROP and $RUN_AS_USER are defined then the new user will most likely not be
        # able to create the lock file.  The Wrapper will be able to update this file once it
        # is created but will not be able to delete it on shutdown.  If $2 is defined then
        # the lock file should be created for the current command
        if [ "X$LOCKPROP" != "X" ]
        then
            if [ "X$2" != "X" ]
            then
                # Resolve the primary group 
                RUN_AS_GROUP=`groups $RUN_AS_USER | awk '{print $3}' | tail -1`
                if [ "X$RUN_AS_GROUP" = "X" ]
                then
                    RUN_AS_GROUP=$RUN_AS_USER
                fi
                touch "$LOCKFILE"
                chown $RUN_AS_USER:$RUN_AS_GROUP "$LOCKFILE"
            fi
        fi

        # Still want to change users, recurse.  This means that the user will only be
        #  prompted for a password once.
        su -m $RUN_AS_USER -c "$REALPATH $1"

        # Now that we are the original user again, we may need to clean up the lock file.
        if [ "X$LOCKPROP" != "X" ]
        then
            getpid
            if [ "X$pid" = "X" ]
            then
                # Wrapper is not running so make sure the lock file is deleted.
                if [ -f "$LOCKFILE" ]
                then
                    rm "$LOCKFILE"
                fi
            fi
        fi

        exit 0
    fi
}

getpid() {
    if [ -f "$PIDFILE" ]
    then
        if [ -r "$PIDFILE" ]
        then
            pid="`cat \"$PIDFILE\"`"
            if [ "X$pid" != "X" ]
            then
                # It is possible that 'a' process with the pid exists but that it is not the
                #  correct process.  This can happen in a number of cases, but the most
                #  common is during system startup after an unclean shutdown.
                # So make sure the process is one of "ours" -- that we can send
		# a signal to it.  (We don't use ps(1) because that's neither
		# safe nor portable.
		if ! kill -0 $pid 2>/dev/null
                then
                    # This is a stale pid file.
                    rm -f "$PIDFILE"
                    echo "Removed stale pid file: $PIDFILE"
                    pid=""
                fi
            fi
        else
            echo "Cannot read $PIDFILE."
            exit 1
        fi
    fi
}

testpid() {
    if ! kill -0 $pid 2>/dev/null
    then
        # Process is gone so remove the pid file.
        rm -f "$PIDFILE"
        pid=""
    fi
}

console() {
    echo "Running $APP_LONG_NAME..."
    getpid
    if [ "X$pid" = "X" ]
    then
        COMMAND_LINE="$CMDNICE \"$WRAPPER_CMD\" \"$WRAPPER_CONF\" wrapper.syslog.ident=\"$APP_NAME\" wrapper.pidfile=\"$PIDFILE\" $LDPROP $ANCHORPROP $LOCKPROP"
        eval $COMMAND_LINE
    else
        echo "$APP_LONG_NAME is already running."
        exit 1
    fi
}
 
start() {
    echo "Starting $APP_LONG_NAME..."
    getpid
    if [ "X$pid" = "X" ]
    then
        if [ "$NO_WRAPPER" ] # Check if we don't have usable wrapper, and run without it
        then
            echo ""
	    echo "Let's start the node without the wrapper, you'll have to daemonize it yourself."
            eval $NO_WRAPPER
        else                 # Otherwise use the wrapper
            COMMAND_LINE="$CMDNICE \"$WRAPPER_CMD\" \"$WRAPPER_CONF\" wrapper.syslog.ident=\"$APP_NAME\" wrapper.pidfile=\"$PIDFILE\" $LDPROP wrapper.daemonize=TRUE $ANCHORPROP $IGNOREPROP $LOCKPROP"
            eval $COMMAND_LINE
        fi
    else
        echo "$APP_LONG_NAME is already running."
        exit 1
    fi
}
 
stopit() {
    echo "Stopping $APP_LONG_NAME..."
    getpid
    if [ "X$pid" = "X" ]
    then
        echo "$APP_LONG_NAME was not running."
    else
        if [ "X$IGNORE_SIGNALS" = "X" ]
        then
            # Running so try to stop it.
            kill $pid
            if [ $? -ne 0 ]
            then
                # An explanation for the failure should have been given
                echo "Unable to stop $APP_LONG_NAME."
                exit 1
            fi
        else
            rm -f "$ANCHORFILE"
            if [ -f "$ANCHORFILE" ]
            then
                # An explanation for the failure should have been given
                echo "Unable to stop $APP_LONG_NAME."
                exit 1
            fi
        fi

        # We can not predict how long it will take for the wrapper to
        #  actually stop as it depends on settings in wrapper.conf.
        #  Loop until it does.
        savepid=$pid
        CNT=0
        TOTCNT=0
        while [ "X$pid" != "X" ]
        do
            # Show a waiting message every 5 seconds.
            if [ "$CNT" -lt "5" ]
            then
                CNT=`expr $CNT + 1`
            else
                echo "Waiting for $APP_LONG_NAME to exit..."
                CNT=0
            fi
            TOTCNT=`expr $TOTCNT + 1`

            sleep 1

            testpid
        done

        pid=$savepid
        testpid
        if [ "X$pid" != "X" ]
        then
            echo "Failed to stop $APP_LONG_NAME."
            exit 1
        else
            echo "Stopped $APP_LONG_NAME."
        fi
    fi
}

status() {
    getpid
    if [ "X$pid" = "X" ]
    then
        echo "$APP_LONG_NAME is not running."
        exit 1
    else
        echo "$APP_LONG_NAME is running ($pid)."
        exit 0
    fi
}

dump() {
    echo "Dumping $APP_LONG_NAME..."
    getpid
    if [ "X$pid" = "X" ]
    then
        echo "$APP_LONG_NAME was not running."

    else
        kill -QUIT $pid

        if [ $? -ne 0 ]
        then
            echo "Failed to dump $APP_LONG_NAME."
            exit 1
        else
            echo "Dumped $APP_LONG_NAME."
        fi
    fi
}

case "$1" in

    'console')
#        checkUser $1 touchlock
        console
        ;;

    'start')
#        checkUser $1 touchlock
        start
        ;;

    'stop')
#        checkUser $1
        stopit
        ;;

    'restart')
#        checkUser $1 touchlock
        stopit
        start
        ;;

    'status')
#        checkUser $1
        status
        ;;

    'dump')
#        checkUser $1
        dump
        ;;

    *)
        echo "Usage: $0 { console | start | stop | restart | status | dump }"
        exit 1
        ;;
esac

exit 0
